The Standard
The Standard
DeFiHardhat
20,000 USDC
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Submission Details
Severity: low
Invalid

Single user bears the liquidation gas cost

0xaraj

Summary

User who call the runLiquidation bears the gas cost instead of whole stakers in the pool

Vulnerability Details

When a user calls runLiquidation by passing tokenId then all the gas cost incur on the caller, but the benefit of liquidation goes to all the staker. This prevents user to call runLiquidation because that hiders the profit of the caller

function runLiquidation(uint256 _tokenId) external {
ISmartVaultManager manager = ISmartVaultManager(smartVaultManager);
manager.liquidateVault(_tokenId);
distributeFees();
ITokenManager.Token[] memory tokens = ITokenManager(manager.tokenManager()).getAcceptedTokens();
ILiquidationPoolManager.Asset[] memory assets = new ILiquidationPoolManager.Asset[](tokens.length);
uint256 ethBalance;
for (uint256 i = 0; i < tokens.length; i++) {
ITokenManager.Token memory token = tokens[i];
if (token.addr == address(0)) {
ethBalance = address(this).balance;
if (ethBalance > 0) assets[i] = ILiquidationPoolManager.Asset(token, ethBalance);
} else {
IERC20 ierc20 = IERC20(token.addr);
uint256 erc20balance = ierc20.balanceOf(address(this));
if (erc20balance > 0) {
assets[i] = ILiquidationPoolManager.Asset(token, erc20balance);
ierc20.approve(pool, erc20balance);
}
}
}
LiquidationPool(pool).distributeAssets{value: ethBalance}(assets, manager.collateralRate(), manager.HUNDRED_PC());
forwardRemainingRewards(tokens);
}

There is no incentive for user who is calling that runLiquidation and who is not calling, because rewards are distributed based on the deposited TST & EURSs. This prevents any user to call runLiquidation

Impact

Many vaults will remain undercollateralized, which will potentially undercollaterise the protocol

Tools Used

Manual Review

Recommendations

Take gas fee from all the stakers who are receiving reward from liquidation

Updates

Lead Judging Commences

hrishibhat Lead Judge over 1 year ago
Submission Judgement Published
Invalidated
Reason: Non-acceptable severity
Assigned finding tags:

informational/invalid

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